Volume-phase transitions of cationic polyelectrolyte gels

Shinichi Kudo; Norio Kosaka; Mikio Konno; Shozaburo Saito

doi:10.1016/0032-3861(92)90055-2

Volume-phase transitions of cationic polyelectrolyte gels

Shinichi Kudo, Norio Kosaka, Mikio Konno, Shozaburo Saito

ENG - Chemical Engineering

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

The swelling equilibrium behaviour of N-n-butyl-N,N-dimethyl-4-vinyl benzylammonium bromide (BBABr) gel was measured in aqueous solutions of various inorganic electrolytes: HBr, LiBr, NaBr, KBr, NH₄Br, NaCl, NaI and NaClO₄. The equilibrium swelling volume of BBABr gel does not depend strongly on the cationic species but on the anionic species. In aqueous solutions containing I^- and ClO^-₄ ions, the volume-phase transitions of the BBABr gel were induced by a change in the concentration of the electrolytes. It was verified experimentally with ⁷⁹Br n.m.r. and an ion electrode that the volume-phase transition is controlled by the change in the association state of the charged groups in the gel.

Original language	English
Pages (from-to)	5040-5043
Number of pages	4
Journal	Polymer
Volume	33
Issue number	23
DOIs	https://doi.org/10.1016/0032-3861(92)90055-2
Publication status	Published - 1992

Keywords

N-n-butyl-N,N-dimethyl-4-vinylbenzylammonium bromide gel
electrolyte aqueous solution
ionic association
polyelectrolyte gel
volume-phase transition

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/0032-3861(92)90055-2

Cite this

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title = "Volume-phase transitions of cationic polyelectrolyte gels",

abstract = "The swelling equilibrium behaviour of N-n-butyl-N,N-dimethyl-4-vinyl benzylammonium bromide (BBABr) gel was measured in aqueous solutions of various inorganic electrolytes: HBr, LiBr, NaBr, KBr, NH4Br, NaCl, NaI and NaClO4. The equilibrium swelling volume of BBABr gel does not depend strongly on the cationic species but on the anionic species. In aqueous solutions containing I- and ClO-4 ions, the volume-phase transitions of the BBABr gel were induced by a change in the concentration of the electrolytes. It was verified experimentally with 79Br n.m.r. and an ion electrode that the volume-phase transition is controlled by the change in the association state of the charged groups in the gel.",

keywords = "N-n-butyl-N,N-dimethyl-4-vinylbenzylammonium bromide gel, electrolyte aqueous solution, ionic association, polyelectrolyte gel, volume-phase transition",

author = "Shinichi Kudo and Norio Kosaka and Mikio Konno and Shozaburo Saito",

year = "1992",

doi = "10.1016/0032-3861(92)90055-2",

language = "English",

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journal = "Polymer (United Kingdom)",

issn = "0032-3861",

publisher = "Elsevier BV",

number = "23",

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TY - JOUR

T1 - Volume-phase transitions of cationic polyelectrolyte gels

AU - Kudo, Shinichi

AU - Kosaka, Norio

AU - Konno, Mikio

AU - Saito, Shozaburo

PY - 1992

Y1 - 1992

N2 - The swelling equilibrium behaviour of N-n-butyl-N,N-dimethyl-4-vinyl benzylammonium bromide (BBABr) gel was measured in aqueous solutions of various inorganic electrolytes: HBr, LiBr, NaBr, KBr, NH4Br, NaCl, NaI and NaClO4. The equilibrium swelling volume of BBABr gel does not depend strongly on the cationic species but on the anionic species. In aqueous solutions containing I- and ClO-4 ions, the volume-phase transitions of the BBABr gel were induced by a change in the concentration of the electrolytes. It was verified experimentally with 79Br n.m.r. and an ion electrode that the volume-phase transition is controlled by the change in the association state of the charged groups in the gel.

AB - The swelling equilibrium behaviour of N-n-butyl-N,N-dimethyl-4-vinyl benzylammonium bromide (BBABr) gel was measured in aqueous solutions of various inorganic electrolytes: HBr, LiBr, NaBr, KBr, NH4Br, NaCl, NaI and NaClO4. The equilibrium swelling volume of BBABr gel does not depend strongly on the cationic species but on the anionic species. In aqueous solutions containing I- and ClO-4 ions, the volume-phase transitions of the BBABr gel were induced by a change in the concentration of the electrolytes. It was verified experimentally with 79Br n.m.r. and an ion electrode that the volume-phase transition is controlled by the change in the association state of the charged groups in the gel.

KW - N-n-butyl-N,N-dimethyl-4-vinylbenzylammonium bromide gel

KW - electrolyte aqueous solution

KW - ionic association

KW - polyelectrolyte gel

KW - volume-phase transition

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U2 - 10.1016/0032-3861(92)90055-2

DO - 10.1016/0032-3861(92)90055-2

M3 - Article

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VL - 33

SP - 5040

EP - 5043

JO - Polymer (United Kingdom)

JF - Polymer (United Kingdom)

SN - 0032-3861

IS - 23

ER -

Volume-phase transitions of cationic polyelectrolyte gels

Abstract

Keywords

ASJC Scopus subject areas

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